Then I explain the issues in exporting to interactive PDFthe most commonly used interactive document formatand e-book files. It turns into the Pause iconic button, which you can click to stop the playback. This can be a text selection or an object (frame or line); if nothing is selected, the bookmark is to the current page. Adobe Reader Mobile doesn't support rich media at all.On desktops, non-Adobe software such as Preview, or Web browser internal renderers, won't display it either. 4. Byselecting Acrobat> Tools> Commenting (or Acrobat> Comments> Commenting Tools [version dependent]) you can get access to the tools you need to record and embed your comments where and when you need to. Typically, you want a visual change to occur so that the user realizes that the object is in fact a button. When the file is opened on a Mac or iPad, the video will not play.